Coding Tutorials (Other than Code.org)
Some of these are for middle and high school students. Some require algebra and geometry experience.
38 sites for kids who code and want to know more
Some of these sites are for middle school and high school students.
Web Design on Wikipedia
Long list of search topics at the end of the article to get you started on many aspects of web design.
HTML hard coding examples and tutorials. Nice to use when WYSIWYG editor is acting squirrely.
HEX, RGB, HSL Color Picker site. Neat to explore text on color and get the HEX code for the perfect web color.
Spider Rolling Minidrone
This site is to buy a minidrone. Search Youtube for tutorials.